(AP) — As big snowflakes fell high in California’s Sierra Nevada on Thursday, surveyors on snowshoes measured the deepest springtime snowpack in years and said it boosted concerns about destructive floods when all that snow melts. Snow in the Sierra Nevada begins melting this time of year as the weather warms, and California is already waterlogged after storms slammed the state in January and February, flooding communities and washing out roads. If more stormy weather hits the state and its mountains soon, snowmelt could speed up, putting pressure on reservoirs, some already brimming full and spilling over, officials said. The snowpack stretches along 400 miles (644 kilometers) of the Sierra Nevada, creating an icy reservoir that provides roughly one-third of irrigation and drinking water to the nation’s most populous state during hot, dry months of the year.

Source: California’s robust mountain snowpack boosts flood concerns – San Francisco Chronicle

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